#include<bits/stdc++.h>
using namespace std;
int n,a[100005],b[100005],c[100005],t,maxn=0,s1,s2,s3,s4;
int s;
int main(){
	freopen("replace.in","r",stdin);
	freopen("replace.out","w",stdout);
	cout<<"0"; 
	return 0;
} 
